Disk wheel



Patented July 18E, 1922.

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A TTORNE Y.

J. F. 'WILMOT.

DISKl WHEEL.

APPLlcATloN mio Nov 2, 19m.

JOHN F. WILMOT, OF DETROIT, MICHIGAN.

nrsx WHEEL.

Application filed November 2, 1921.

To all 'whom t may concern.'

Be it known that I, JOHN F. VVILMOT, a citizen of the United States,residing at Detroit, county of Wayne, State of Michigan, have invented acertain new and useful- Improvement in Disk Wheels, and declare thefollowing to be a full, clear, and exact description of the same, suchas will enable others skilled in the art to which it pertains to makeand use the same, had to the accompanying drawings, which form a part ofthis specification.

This'invention relates to diskwheels for vehicles, and the object of theinvention is to provide a substantial disk wheel adapted to be securedto a hub and tire rim of the character ordinarily used in motor cars. A

' tachment to particular feature of the invention is to secure acomparatively light weight wheel and that is of ample strength at thepoint of atthe hub andof as lightweight as is practicable atvtheperipheryor the point of attachment to the rim. A further feature oftheinvention is in forming the wheel of a series of disks 'of successivelygreater diameter, all of the disks being attached to the hub and thedisk of greatest diameter only attached to the rim with one or more ofthe intermediate disks rigidly attached near its periphery to themaindisk. By tine construction outlinedl a light and serviceable wheelis secured, one comparatively inexpensive to manufacture as all of thedisks are of sheet metal shaped in the desired manner and the disks arein superimposed relation lying in surface contact one with the other.These several objects and the various novel features. of the inventionare hereinafter more fully described and claimed, and the preferred formof construction of a disk wheel embodyingmy in.- vention is' shown inthe'accompanying drawings in which Fig. l is a side elevation of myimproved disk wheel. o Fig. 2 is a transverse section thereof show#ing'the manner of securing` the ldiskstogether and to the hub andY rim.y

Figs. 3 and 4 show alternative forms of construction.

Fig. 5' is a detail in section showing one mode of securing one of thedisks near its periphery to the'adjacent diskl.`

Fig. 6 is a similar section showing the mode of attaching the diskstogether `that Specification of Letters Patent.

reference being.

Patented July 1s, 1922.

Serial No. 512,163.

lie intermediate the disks of leastand greatest diameter.

It isto be understood that this invention relates particularly to thedisk and its construction and that any type of hub and rim may beemployed therewith as may be de sired for which purpose some possiblechanges may be required' in the mode of attachment to the hub and someslight change made'in the. shape of the periphery of the disk of thegreatest diameter for its attach# ment to a rim of peculiar shape orconstruction. Preferably the disk is composed of several disks lying insurface contact as will be understood from Figs. 2 or 3, there being adisk l of sheet metal and of concavoconvex form as shown and a seconddisk 2 of greater diameter and a disk 3 of the greatest diameter. All ofthese disks, as before stated, are centrally apertured in theconstruction here shown to permit assembly. with the hub or between theflanges of the hub as for instance by means of bolts 4' passed throughapertures 2O provided at the center in the assembled disks. Other typesof hubs and mode of attachment may be used, however, if desired.

I have shown in the drawing three disks of varying diameter but it is tobe understood that any number of disks may be employed as may be founddesirable. The disk 2 near its periphery intermediate the periphery ofthe inner disk 1 and the outer disk hof the greatest A,diameter isattached, a's for instance by means of a series of rivets or bolts 6,vdirectly to the main supporting disk 3. Preferably these rivets or boltsare provided with a large convex head as shown both for the' sake ofsecuring considerable surface contact of the rivet or bolt head with ithe plates and also to give a distinctive ap` pearance to the wheel. Ifmore than three disks are used all the disks between the smaller disk land the disk of greatest diameter should bel secured to the adjacentdisk as-shown more clearly in Fig. 6.

With this construction of a wheel with a .multiplicity of disks, quitethin disks may be used and, as each disk is secured near its peripheryto the adjacent disk only, a ver resilient but strong wheel is secured.wheel Vso constructed is progressively stiffer toward its center due tothe fact that the rim of the wheel is supported by a single disk ofquite e'xible character and the flexiand its adaptation to hubs and rimsot any bility of the larger disk is limited by the fiexibility ot' thesecond disk and the second disk by that otl the third, etc., so that anyflexing ot' the wheel through side thrust or road shock it' only slightwould be absorbed by the larger disk and it the shock be greater thesecond or third or 4other disks are progressively brought into actionand side thrust or shock is thus absorbed.

I have shown two modes ot tlanging the disk ot greatest diameter. InFig. l this tiange T is turned backward providing a means tor securingthe tire riin to the disk but this flange may be -turned in the oppositedirection as is shown at 8 in Fig. B it' desired. Also, instead of theconcave side otthe disks being` onvthe outer side ot the wheel as isshown in Fig. 2, the convex side may be on the exterior ot' the wheel asshown in Figs. 3 and 4. In any case. the fiange provided should be of ashape to conform to that of the tire rim in a manner to secure an ampleand strong connection between the rim and they disk. Preferably thelarger disk is on the outside ot the. wheel in order to secure a neatand smooth appearance ot the wheel.' The wheel, however, could be madereversed so that the smaller disks would be on the outer side ot thewheel as shown in Fig. 3.

It is to be noted that rear wheel hubs which are usually provided with abrake drum in place ot the usual hub flange may be used with thischaracter and construction of disk wheel although such arrangement isnot here shown being well known in the art, I therefore donotmake claimto any particular character of construction ot the hub or tire rim butas hereinafter set forth do claim the construction ot the multiple diskdesired character. such hubs usually having a front and rear plate (thebrake drum for the rear wheels in many cases serving as a plate) andbetween these two plates the series of disks either with the convex orconcave side o utward may be secured.

The disks may also be made at the center to tit between the parallelsides of the hub plates or the plates may be provided with a curvedface'or ilter to nt the curve of the disks. lith the comparatively thindisks as described the tire rim is supported directly on this disk otgreatest diameter and a wheel is secured that is light in weight andmore or less resilient and with the series of disks ot successivelylesser diameter than the main disk, great strength is secured at thecenter point of attachment to the hub. The disks may vary in diameter inan uneven ratio one with the other but pretcrably the variation isapproximately unrlorm.

lVith the construction described there. is

no sliding movement ot. the disks one on the other, the assembled disksall act as a unit,

and the desired strength at the center is secured with a resilientconnection ot' the rim to the hub.

Having thus fully described my invention, what I claim isl. In a vehiclewheel having a hub and a rim, a main supporting disk attached at theperiphery to the rim, and a series ot disks each of less diameter thanthe next ot the series, all of the disks being secured at the center tothe hub and the disks intermediate the disk ot' least diameter and maindisk being ixedly attached to the adjacent disk only. V

2. In a vehicle wheel having ahub and a rim; a series of concavo-convexdisks in surface contact one with the other. each ot less diameter thanthe next of the series. the disk of greatest diameter being attached totherrim and all the disks being secured at the center ot the hub. andthe peripheries ot' the disks intermediate the disk ot least andgreatest diameter being lixedly secured to the adjacent disk only.

3. In a vehicle wheel having a hub and a rim, a main supporting disk otconcavo-convex torni extending from the hub to the rim and having aperipheral flange adapted tor attaching the rim to its periphery, and aplurality of disks of successively les( diameter in close contacttherewith and lwith each other, all ot the disks being secured to thehub and each disk near its periphery bcing secured to the adjacent diskonly.

Lt. In a vehicle wheel having a. tire carrying rim and a hub providedwith spaced {ianges or portions Jfor securing the disks to the hub` amain supporting disk extending from hub to rim ot' concavo-convex form,a series ot disks consecutively of lesser diameter than the mainsupporting disk, the disks lying in surface contact one with the` otherand each being attached near its periphery to the next larger disk only.

In a vehicle wheel having a hub and a rim, a series ot super-imposeddisks ot' consecutively greater diameter collectively sccured togetherat the hub and the larger disc onlyA being secured to the rim. theintermediate disks being attached ncar their peripheries by a series ofbolts or rivets to the disk ot nextgreatest diameter only. the Abolts orrivets securing the disc ol' the second largest diameter to the maindisc having convex heads and being the only series ot the disc attachingbolts or rivets exposed to view on `the outer side ot the wheel,

In testimony whereotV I sign this specification.

.RHIN l". IVIIJMOT.

vCertificate of Correction.

Itis hereby certified that in Letters Patent N o. 1,423,060, grantedJuly 18, 1922,

- upon the application of John F. Wilmot, of Detroit,pMichiga,n, for animprove ment in Disk Wheels, an error appears in the printed'specification requiring correction as follows: Page 2, line 86, claini2, `for the Word of, lfirst occurrence, read to.; and that the saidLetters Patelit should be read with this correction therein thzit thesame may conform to the record of the ease in the Patent Office. I

Signed and settled this 29th day of August, A. D., 1922.

[mit]4 A A KARL FENNiNG,

Acting Comm/ssio'ner of Pete/tts?.

